android_device_lenovo_karate/camera/QCamera2/util/QCameraDisplay.h
Vitaliy Tomin 880b26ccee land: import oss camera LA.UM.5.1-03810-8x37.0
additional cherry-picks:
 * b706b064b QCamera2: Fix compilation errors for unused variables.
 * 1e2ea589e HAL: Fixed compilation error for AOSP upgrade
2017-12-11 20:14:21 +05:30

76 lines
3.2 KiB
C++

/* Copyright (c) 2015-2016, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
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* with the distribution.
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#ifndef __QCAMERADISPLAY_H__
#define __QCAMERADISPLAY_H__
#include <gui/DisplayEventReceiver.h>
#include <android/looper.h>
#include <utils/Looper.h>
namespace qcamera {
#define CAMERA_NUM_VSYNC_INTERVAL_HISTORY 6
class QCameraDisplay {
public:
QCameraDisplay();
~QCameraDisplay();
static int vsyncEventReceiverCamera(int fd, int events, void* data);
static void* vsyncThreadCamera(void * data);
void computeAverageVsyncInterval(nsecs_t currentVsyncTimeStamp);
nsecs_t computePresentationTimeStamp(nsecs_t frameTimeStamp);
private:
pthread_t mVsyncThreadCameraHandle;
nsecs_t mVsyncTimeStamp;
nsecs_t mAvgVsyncInterval;
nsecs_t mOldTimeStamp;
nsecs_t mVsyncIntervalHistory[CAMERA_NUM_VSYNC_INTERVAL_HISTORY];
nsecs_t mVsyncHistoryIndex;
nsecs_t mAdditionalVsyncOffsetForWiggle;
uint32_t mThreadExit;
// Tunable property. Increasing this will increase the frame delay and will loose
// the real time display.
uint32_t mNum_vsync_from_vfe_isr_to_presentation_timestamp;
// Tunable property. Set the time stamp x ms prior to expected vsync so that
// it will be picked in that vsync
uint32_t mSet_timestamp_num_ms_prior_to_vsync;
// Tunable property for filtering timestamp wiggle when VFE ISR crosses
// over MDP ISR over a period. Typical scenario is VFE is running at
// 30.2 fps vs display running at 60 fps.
uint32_t mVfe_and_mdp_freq_wiggle_filter_max_ms;
uint32_t mVfe_and_mdp_freq_wiggle_filter_min_ms;
android::DisplayEventReceiver mDisplayEventReceiver;
};
}; // namespace qcamera
#endif /* __QCAMERADISPLAY_H__ */